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Commit | Line | Data |
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718e3744 | 1 | /* BGP nexthop scan |
896014f4 DL |
2 | * Copyright (C) 2000 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "thread.h" | |
25 | #include "prefix.h" | |
26 | #include "zclient.h" | |
27 | #include "stream.h" | |
28 | #include "network.h" | |
29 | #include "log.h" | |
30 | #include "memory.h" | |
10f9bf3f JBD |
31 | #include "hash.h" |
32 | #include "jhash.h" | |
fb018d25 | 33 | #include "nexthop.h" |
3f9c7369 | 34 | #include "queue.h" |
039f3a34 | 35 | #include "filter.h" |
987a720a | 36 | #include "printfrr.h" |
718e3744 | 37 | |
38 | #include "bgpd/bgpd.h" | |
718e3744 | 39 | #include "bgpd/bgp_route.h" |
40 | #include "bgpd/bgp_attr.h" | |
41 | #include "bgpd/bgp_nexthop.h" | |
fb018d25 | 42 | #include "bgpd/bgp_nht.h" |
718e3744 | 43 | #include "bgpd/bgp_debug.h" |
44 | #include "bgpd/bgp_damp.h" | |
8ffedcea | 45 | #include "bgpd/bgp_fsm.h" |
8386ac43 | 46 | #include "bgpd/bgp_vty.h" |
5d76a53d | 47 | #include "bgpd/bgp_rd.h" |
718e3744 | 48 | |
2a99175f | 49 | DEFINE_MTYPE_STATIC(BGPD, MARTIAN_STRING, "BGP Martian Addr Intf String"); |
330cec3d | 50 | |
f663c581 RW |
51 | int bgp_nexthop_cache_compare(const struct bgp_nexthop_cache *a, |
52 | const struct bgp_nexthop_cache *b) | |
fb018d25 | 53 | { |
545aeef1 RW |
54 | if (a->srte_color < b->srte_color) |
55 | return -1; | |
56 | if (a->srte_color > b->srte_color) | |
57 | return 1; | |
58 | ||
35aae5c9 DS |
59 | if (a->ifindex < b->ifindex) |
60 | return -1; | |
61 | if (a->ifindex > b->ifindex) | |
62 | return 1; | |
63 | ||
f663c581 RW |
64 | return prefix_cmp(&a->prefix, &b->prefix); |
65 | } | |
66 | ||
d62a17ae | 67 | void bnc_nexthop_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 68 | { |
d62a17ae | 69 | nexthops_free(bnc->nexthop); |
718e3744 | 70 | } |
71 | ||
f663c581 | 72 | struct bgp_nexthop_cache *bnc_new(struct bgp_nexthop_cache_head *tree, |
35aae5c9 DS |
73 | struct prefix *prefix, uint32_t srte_color, |
74 | ifindex_t ifindex) | |
718e3744 | 75 | { |
d62a17ae | 76 | struct bgp_nexthop_cache *bnc; |
fb018d25 | 77 | |
d62a17ae | 78 | bnc = XCALLOC(MTYPE_BGP_NEXTHOP_CACHE, |
79 | sizeof(struct bgp_nexthop_cache)); | |
f663c581 | 80 | bnc->prefix = *prefix; |
35aae5c9 | 81 | bnc->ifindex = ifindex; |
545aeef1 | 82 | bnc->srte_color = srte_color; |
f663c581 | 83 | bnc->tree = tree; |
d62a17ae | 84 | LIST_INIT(&(bnc->paths)); |
f663c581 RW |
85 | bgp_nexthop_cache_add(tree, bnc); |
86 | ||
d62a17ae | 87 | return bnc; |
718e3744 | 88 | } |
89 | ||
e37e1e27 PR |
90 | bool bnc_existing_for_prefix(struct bgp_nexthop_cache *bnc) |
91 | { | |
92 | struct bgp_nexthop_cache *bnc_tmp; | |
93 | ||
94 | frr_each (bgp_nexthop_cache, bnc->tree, bnc_tmp) { | |
95 | if (bnc_tmp == bnc) | |
96 | continue; | |
97 | if (prefix_cmp(&bnc->prefix, &bnc_tmp->prefix) == 0) | |
98 | return true; | |
99 | } | |
100 | return false; | |
101 | } | |
102 | ||
d62a17ae | 103 | void bnc_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 104 | { |
d62a17ae | 105 | bnc_nexthop_free(bnc); |
f663c581 | 106 | bgp_nexthop_cache_del(bnc->tree, bnc); |
d62a17ae | 107 | XFREE(MTYPE_BGP_NEXTHOP_CACHE, bnc); |
718e3744 | 108 | } |
6b0655a2 | 109 | |
f663c581 | 110 | struct bgp_nexthop_cache *bnc_find(struct bgp_nexthop_cache_head *tree, |
35aae5c9 DS |
111 | struct prefix *prefix, uint32_t srte_color, |
112 | ifindex_t ifindex) | |
f663c581 RW |
113 | { |
114 | struct bgp_nexthop_cache bnc = {}; | |
115 | ||
116 | if (!tree) | |
117 | return NULL; | |
118 | ||
119 | bnc.prefix = *prefix; | |
545aeef1 | 120 | bnc.srte_color = srte_color; |
35aae5c9 | 121 | bnc.ifindex = ifindex; |
f663c581 RW |
122 | return bgp_nexthop_cache_find(tree, &bnc); |
123 | } | |
124 | ||
718e3744 | 125 | /* Reset and free all BGP nexthop cache. */ |
f663c581 | 126 | static void bgp_nexthop_cache_reset(struct bgp_nexthop_cache_head *tree) |
718e3744 | 127 | { |
d62a17ae | 128 | struct bgp_nexthop_cache *bnc; |
129 | ||
f663c581 RW |
130 | while (bgp_nexthop_cache_count(tree) > 0) { |
131 | bnc = bgp_nexthop_cache_first(tree); | |
7f040da1 | 132 | |
3d111939 DS |
133 | while (!LIST_EMPTY(&(bnc->paths))) { |
134 | struct bgp_path_info *path = LIST_FIRST(&(bnc->paths)); | |
7f040da1 | 135 | |
3d111939 | 136 | path_nh_map(path, bnc, false); |
d62a17ae | 137 | } |
3d111939 DS |
138 | |
139 | bnc_free(bnc); | |
14315f2d | 140 | } |
718e3744 | 141 | } |
142 | ||
db0e1937 MK |
143 | static void *bgp_tip_hash_alloc(void *p) |
144 | { | |
0291c246 MK |
145 | const struct in_addr *val = (const struct in_addr *)p; |
146 | struct tip_addr *addr; | |
db0e1937 MK |
147 | |
148 | addr = XMALLOC(MTYPE_TIP_ADDR, sizeof(struct tip_addr)); | |
149 | addr->refcnt = 0; | |
150 | addr->addr.s_addr = val->s_addr; | |
151 | ||
152 | return addr; | |
153 | } | |
154 | ||
155 | static void bgp_tip_hash_free(void *addr) | |
156 | { | |
157 | XFREE(MTYPE_TIP_ADDR, addr); | |
158 | } | |
159 | ||
d8b87afe | 160 | static unsigned int bgp_tip_hash_key_make(const void *p) |
db0e1937 | 161 | { |
0291c246 | 162 | const struct tip_addr *addr = p; |
db0e1937 MK |
163 | |
164 | return jhash_1word(addr->addr.s_addr, 0); | |
165 | } | |
166 | ||
74df8d6d | 167 | static bool bgp_tip_hash_cmp(const void *p1, const void *p2) |
db0e1937 | 168 | { |
0291c246 MK |
169 | const struct tip_addr *addr1 = p1; |
170 | const struct tip_addr *addr2 = p2; | |
db0e1937 MK |
171 | |
172 | return addr1->addr.s_addr == addr2->addr.s_addr; | |
173 | } | |
174 | ||
175 | void bgp_tip_hash_init(struct bgp *bgp) | |
176 | { | |
996c9314 | 177 | bgp->tip_hash = hash_create(bgp_tip_hash_key_make, bgp_tip_hash_cmp, |
3f65c5b1 | 178 | "BGP TIP hash"); |
db0e1937 MK |
179 | } |
180 | ||
181 | void bgp_tip_hash_destroy(struct bgp *bgp) | |
182 | { | |
183 | if (bgp->tip_hash == NULL) | |
184 | return; | |
185 | hash_clean(bgp->tip_hash, bgp_tip_hash_free); | |
186 | hash_free(bgp->tip_hash); | |
187 | bgp->tip_hash = NULL; | |
188 | } | |
189 | ||
190 | void bgp_tip_add(struct bgp *bgp, struct in_addr *tip) | |
191 | { | |
0291c246 MK |
192 | struct tip_addr tmp; |
193 | struct tip_addr *addr; | |
db0e1937 MK |
194 | |
195 | tmp.addr = *tip; | |
196 | ||
197 | addr = hash_get(bgp->tip_hash, &tmp, bgp_tip_hash_alloc); | |
db0e1937 MK |
198 | addr->refcnt++; |
199 | } | |
200 | ||
201 | void bgp_tip_del(struct bgp *bgp, struct in_addr *tip) | |
202 | { | |
0291c246 MK |
203 | struct tip_addr tmp; |
204 | struct tip_addr *addr; | |
db0e1937 MK |
205 | |
206 | tmp.addr = *tip; | |
207 | ||
208 | addr = hash_lookup(bgp->tip_hash, &tmp); | |
209 | /* may have been deleted earlier by bgp_interface_down() */ | |
210 | if (addr == NULL) | |
211 | return; | |
212 | ||
213 | addr->refcnt--; | |
214 | ||
215 | if (addr->refcnt == 0) { | |
216 | hash_release(bgp->tip_hash, addr); | |
217 | XFREE(MTYPE_TIP_ADDR, addr); | |
218 | } | |
219 | } | |
10f9bf3f | 220 | |
af97a18b DS |
221 | /* BGP own address structure */ |
222 | struct bgp_addr { | |
2ec802d1 | 223 | struct prefix p; |
f4c2fb93 | 224 | struct list *ifp_name_list; |
af97a18b DS |
225 | }; |
226 | ||
e3b78da8 | 227 | static void show_address_entry(struct hash_bucket *bucket, void *args) |
af97a18b DS |
228 | { |
229 | struct vty *vty = (struct vty *)args; | |
e3b78da8 | 230 | struct bgp_addr *addr = (struct bgp_addr *)bucket->data; |
f4c2fb93 DS |
231 | char *name; |
232 | struct listnode *node; | |
949b0f24 | 233 | char str[INET6_ADDRSTRLEN] = {0}; |
234 | ||
e61f7c0a | 235 | vty_out(vty, "addr: %s, count: %d : ", |
2ec802d1 | 236 | inet_ntop(addr->p.family, &(addr->p.u.prefix), |
e61f7c0a DS |
237 | str, INET6_ADDRSTRLEN), |
238 | addr->ifp_name_list->count); | |
f4c2fb93 DS |
239 | |
240 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { | |
241 | vty_out(vty, " %s,", name); | |
242 | } | |
243 | ||
244 | vty_out(vty, "\n"); | |
af97a18b DS |
245 | } |
246 | ||
247 | void bgp_nexthop_show_address_hash(struct vty *vty, struct bgp *bgp) | |
248 | { | |
249 | hash_iterate(bgp->address_hash, | |
e3b78da8 | 250 | (void (*)(struct hash_bucket *, void *))show_address_entry, |
af97a18b DS |
251 | vty); |
252 | } | |
253 | ||
f4c2fb93 DS |
254 | static void bgp_address_hash_string_del(void *val) |
255 | { | |
256 | char *data = val; | |
257 | ||
330cec3d | 258 | XFREE(MTYPE_MARTIAN_STRING, data); |
f4c2fb93 DS |
259 | } |
260 | ||
d62a17ae | 261 | static void *bgp_address_hash_alloc(void *p) |
10f9bf3f | 262 | { |
949b0f24 | 263 | struct bgp_addr *copy_addr = p; |
264 | struct bgp_addr *addr = NULL; | |
10f9bf3f | 265 | |
d62a17ae | 266 | addr = XMALLOC(MTYPE_BGP_ADDR, sizeof(struct bgp_addr)); |
2ec802d1 | 267 | prefix_copy(&addr->p, ©_addr->p); |
10f9bf3f | 268 | |
f4c2fb93 DS |
269 | addr->ifp_name_list = list_new(); |
270 | addr->ifp_name_list->del = bgp_address_hash_string_del; | |
271 | ||
d62a17ae | 272 | return addr; |
10f9bf3f JBD |
273 | } |
274 | ||
f4c2fb93 | 275 | static void bgp_address_hash_free(void *data) |
37d361e7 | 276 | { |
f4c2fb93 DS |
277 | struct bgp_addr *addr = data; |
278 | ||
6a154c88 | 279 | list_delete(&addr->ifp_name_list); |
d62a17ae | 280 | XFREE(MTYPE_BGP_ADDR, addr); |
37d361e7 RW |
281 | } |
282 | ||
d8b87afe | 283 | static unsigned int bgp_address_hash_key_make(const void *p) |
10f9bf3f | 284 | { |
d62a17ae | 285 | const struct bgp_addr *addr = p; |
10f9bf3f | 286 | |
2ec802d1 | 287 | return prefix_hash_key(&addr->p); |
10f9bf3f JBD |
288 | } |
289 | ||
74df8d6d | 290 | static bool bgp_address_hash_cmp(const void *p1, const void *p2) |
10f9bf3f | 291 | { |
d62a17ae | 292 | const struct bgp_addr *addr1 = p1; |
293 | const struct bgp_addr *addr2 = p2; | |
10f9bf3f | 294 | |
2ec802d1 | 295 | return prefix_same(&addr1->p, &addr2->p); |
10f9bf3f JBD |
296 | } |
297 | ||
d62a17ae | 298 | void bgp_address_init(struct bgp *bgp) |
10f9bf3f | 299 | { |
996c9314 LB |
300 | bgp->address_hash = |
301 | hash_create(bgp_address_hash_key_make, bgp_address_hash_cmp, | |
949b0f24 | 302 | "BGP Connected Address Hash"); |
10f9bf3f JBD |
303 | } |
304 | ||
d62a17ae | 305 | void bgp_address_destroy(struct bgp *bgp) |
bb86c601 | 306 | { |
d62a17ae | 307 | if (bgp->address_hash == NULL) |
308 | return; | |
309 | hash_clean(bgp->address_hash, bgp_address_hash_free); | |
310 | hash_free(bgp->address_hash); | |
311 | bgp->address_hash = NULL; | |
bb86c601 LB |
312 | } |
313 | ||
f4c2fb93 DS |
314 | static void bgp_address_add(struct bgp *bgp, struct connected *ifc, |
315 | struct prefix *p) | |
10f9bf3f | 316 | { |
d62a17ae | 317 | struct bgp_addr tmp; |
318 | struct bgp_addr *addr; | |
f4c2fb93 DS |
319 | struct listnode *node; |
320 | char *name; | |
10f9bf3f | 321 | |
2ec802d1 | 322 | tmp.p = *p; |
949b0f24 | 323 | |
2ec802d1 DS |
324 | if (tmp.p.family == AF_INET) |
325 | tmp.p.prefixlen = IPV4_MAX_BITLEN; | |
326 | else if (tmp.p.family == AF_INET6) | |
327 | tmp.p.prefixlen = IPV6_MAX_BITLEN; | |
10f9bf3f | 328 | |
d62a17ae | 329 | addr = hash_get(bgp->address_hash, &tmp, bgp_address_hash_alloc); |
5ce10e92 | 330 | |
f4c2fb93 DS |
331 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { |
332 | if (strcmp(ifc->ifp->name, name) == 0) | |
333 | break; | |
334 | } | |
335 | if (!node) { | |
330cec3d | 336 | name = XSTRDUP(MTYPE_MARTIAN_STRING, ifc->ifp->name); |
f4c2fb93 DS |
337 | listnode_add(addr->ifp_name_list, name); |
338 | } | |
10f9bf3f JBD |
339 | } |
340 | ||
f4c2fb93 DS |
341 | static void bgp_address_del(struct bgp *bgp, struct connected *ifc, |
342 | struct prefix *p) | |
10f9bf3f | 343 | { |
d62a17ae | 344 | struct bgp_addr tmp; |
345 | struct bgp_addr *addr; | |
f4c2fb93 DS |
346 | struct listnode *node; |
347 | char *name; | |
10f9bf3f | 348 | |
2ec802d1 | 349 | tmp.p = *p; |
949b0f24 | 350 | |
2ec802d1 DS |
351 | if (tmp.p.family == AF_INET) |
352 | tmp.p.prefixlen = IPV4_MAX_BITLEN; | |
353 | else if (tmp.p.family == AF_INET6) | |
354 | tmp.p.prefixlen = IPV6_MAX_BITLEN; | |
10f9bf3f | 355 | |
d62a17ae | 356 | addr = hash_lookup(bgp->address_hash, &tmp); |
357 | /* may have been deleted earlier by bgp_interface_down() */ | |
358 | if (addr == NULL) | |
359 | return; | |
9e47abd8 | 360 | |
f4c2fb93 DS |
361 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { |
362 | if (strcmp(ifc->ifp->name, name) == 0) | |
363 | break; | |
364 | } | |
10f9bf3f | 365 | |
b9129915 | 366 | if (node) { |
f4c2fb93 | 367 | list_delete_node(addr->ifp_name_list, node); |
b9129915 DS |
368 | XFREE(MTYPE_MARTIAN_STRING, name); |
369 | } | |
f4c2fb93 DS |
370 | |
371 | if (addr->ifp_name_list->count == 0) { | |
d62a17ae | 372 | hash_release(bgp->address_hash, addr); |
6a154c88 | 373 | list_delete(&addr->ifp_name_list); |
d62a17ae | 374 | XFREE(MTYPE_BGP_ADDR, addr); |
375 | } | |
10f9bf3f JBD |
376 | } |
377 | ||
6b0655a2 | 378 | |
d62a17ae | 379 | struct bgp_connected_ref { |
380 | unsigned int refcnt; | |
718e3744 | 381 | }; |
382 | ||
d62a17ae | 383 | void bgp_connected_add(struct bgp *bgp, struct connected *ifc) |
718e3744 | 384 | { |
d62a17ae | 385 | struct prefix p; |
386 | struct prefix *addr; | |
9bcb3eef | 387 | struct bgp_dest *dest; |
d62a17ae | 388 | struct bgp_connected_ref *bc; |
389 | struct listnode *node, *nnode; | |
390 | struct peer *peer; | |
391 | ||
392 | addr = ifc->address; | |
393 | ||
394 | p = *(CONNECTED_PREFIX(ifc)); | |
395 | if (addr->family == AF_INET) { | |
396 | apply_mask_ipv4((struct prefix_ipv4 *)&p); | |
397 | ||
398 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) | |
399 | return; | |
400 | ||
f4c2fb93 | 401 | bgp_address_add(bgp, ifc, addr); |
d62a17ae | 402 | |
8998807f | 403 | dest = bgp_node_get(bgp->connected_table[AFI_IP], &p); |
9bcb3eef | 404 | bc = bgp_dest_get_bgp_connected_ref_info(dest); |
3d9dbdbe | 405 | if (bc) |
d62a17ae | 406 | bc->refcnt++; |
3d9dbdbe | 407 | else { |
d62a17ae | 408 | bc = XCALLOC(MTYPE_BGP_CONN, |
409 | sizeof(struct bgp_connected_ref)); | |
410 | bc->refcnt = 1; | |
9bcb3eef | 411 | bgp_dest_set_bgp_connected_ref_info(dest, bc); |
d62a17ae | 412 | } |
8ffedcea | 413 | |
d62a17ae | 414 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
415 | if (peer->conf_if | |
416 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0) | |
feb17238 | 417 | && !peer_established(peer) |
d62a17ae | 418 | && !CHECK_FLAG(peer->flags, |
419 | PEER_FLAG_IFPEER_V6ONLY)) { | |
420 | if (peer_active(peer)) | |
421 | BGP_EVENT_ADD(peer, BGP_Stop); | |
422 | BGP_EVENT_ADD(peer, BGP_Start); | |
423 | } | |
424 | } | |
425 | } else if (addr->family == AF_INET6) { | |
426 | apply_mask_ipv6((struct prefix_ipv6 *)&p); | |
427 | ||
428 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) | |
429 | return; | |
430 | ||
431 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
432 | return; | |
433 | ||
949b0f24 | 434 | bgp_address_add(bgp, ifc, addr); |
435 | ||
8998807f | 436 | dest = bgp_node_get(bgp->connected_table[AFI_IP6], &p); |
3d9dbdbe | 437 | |
9bcb3eef | 438 | bc = bgp_dest_get_bgp_connected_ref_info(dest); |
3d9dbdbe | 439 | if (bc) |
d62a17ae | 440 | bc->refcnt++; |
3d9dbdbe | 441 | else { |
d62a17ae | 442 | bc = XCALLOC(MTYPE_BGP_CONN, |
443 | sizeof(struct bgp_connected_ref)); | |
444 | bc->refcnt = 1; | |
9bcb3eef | 445 | bgp_dest_set_bgp_connected_ref_info(dest, bc); |
d62a17ae | 446 | } |
718e3744 | 447 | } |
718e3744 | 448 | } |
449 | ||
d62a17ae | 450 | void bgp_connected_delete(struct bgp *bgp, struct connected *ifc) |
718e3744 | 451 | { |
d62a17ae | 452 | struct prefix p; |
453 | struct prefix *addr; | |
9bcb3eef | 454 | struct bgp_dest *dest = NULL; |
d62a17ae | 455 | struct bgp_connected_ref *bc; |
718e3744 | 456 | |
d62a17ae | 457 | addr = ifc->address; |
718e3744 | 458 | |
d62a17ae | 459 | p = *(CONNECTED_PREFIX(ifc)); |
f6bdc080 | 460 | apply_mask(&p); |
d62a17ae | 461 | if (addr->family == AF_INET) { |
d62a17ae | 462 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) |
463 | return; | |
718e3744 | 464 | |
f4c2fb93 | 465 | bgp_address_del(bgp, ifc, addr); |
10f9bf3f | 466 | |
9bcb3eef | 467 | dest = bgp_node_lookup(bgp->connected_table[AFI_IP], &p); |
d62a17ae | 468 | } else if (addr->family == AF_INET6) { |
d62a17ae | 469 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) |
470 | return; | |
471 | ||
472 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
473 | return; | |
474 | ||
949b0f24 | 475 | bgp_address_del(bgp, ifc, addr); |
476 | ||
9bcb3eef | 477 | dest = bgp_node_lookup(bgp->connected_table[AFI_IP6], &p); |
f6bdc080 | 478 | } |
d62a17ae | 479 | |
9bcb3eef | 480 | if (!dest) |
f6bdc080 DS |
481 | return; |
482 | ||
9bcb3eef | 483 | bc = bgp_dest_get_bgp_connected_ref_info(dest); |
f6bdc080 DS |
484 | bc->refcnt--; |
485 | if (bc->refcnt == 0) { | |
486 | XFREE(MTYPE_BGP_CONN, bc); | |
9bcb3eef | 487 | bgp_dest_set_bgp_connected_ref_info(dest, NULL); |
718e3744 | 488 | } |
9bcb3eef DS |
489 | bgp_dest_unlock_node(dest); |
490 | bgp_dest_unlock_node(dest); | |
718e3744 | 491 | } |
492 | ||
3292693b DS |
493 | static void bgp_connected_cleanup(struct route_table *table, |
494 | struct route_node *rn) | |
495 | { | |
496 | struct bgp_connected_ref *bc; | |
9bcb3eef | 497 | struct bgp_dest *bn = bgp_dest_from_rnode(rn); |
3292693b | 498 | |
9bcb3eef | 499 | bc = bgp_dest_get_bgp_connected_ref_info(bn); |
3292693b DS |
500 | if (!bc) |
501 | return; | |
502 | ||
503 | bc->refcnt--; | |
504 | if (bc->refcnt == 0) { | |
505 | XFREE(MTYPE_BGP_CONN, bc); | |
9bcb3eef | 506 | bgp_dest_set_bgp_connected_ref_info(bn, NULL); |
3292693b DS |
507 | } |
508 | } | |
509 | ||
3dc339cd | 510 | bool bgp_nexthop_self(struct bgp *bgp, afi_t afi, uint8_t type, |
9bcb3eef DS |
511 | uint8_t sub_type, struct attr *attr, |
512 | struct bgp_dest *dest) | |
718e3744 | 513 | { |
af34d2da | 514 | uint8_t new_afi = afi == AFI_IP ? AF_INET : AF_INET6; |
8c5c49ac | 515 | struct bgp_addr tmp_addr = {{0}}, *addr = NULL; |
949b0f24 | 516 | struct tip_addr tmp_tip, *tip = NULL; |
9bcb3eef | 517 | const struct prefix *p = bgp_dest_get_prefix(dest); |
c4fb2504 DS |
518 | bool is_bgp_static_route = |
519 | ((type == ZEBRA_ROUTE_BGP) && (sub_type == BGP_ROUTE_STATIC)) | |
949b0f24 | 520 | ? true |
521 | : false; | |
522 | ||
523 | if (!is_bgp_static_route) | |
af34d2da | 524 | new_afi = BGP_ATTR_NEXTHOP_AFI_IP6(attr) ? AF_INET6 : AF_INET; |
949b0f24 | 525 | |
e26c3055 | 526 | tmp_addr.p.family = new_afi; |
949b0f24 | 527 | switch (new_afi) { |
af34d2da | 528 | case AF_INET: |
949b0f24 | 529 | if (is_bgp_static_route) { |
b54892e0 DS |
530 | tmp_addr.p.u.prefix4 = p->u.prefix4; |
531 | tmp_addr.p.prefixlen = p->prefixlen; | |
949b0f24 | 532 | } else { |
533 | /* Here we need to find out which nexthop to be used*/ | |
c4fb2504 | 534 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) { |
e26c3055 DS |
535 | tmp_addr.p.u.prefix4 = attr->nexthop; |
536 | tmp_addr.p.prefixlen = IPV4_MAX_BITLEN; | |
c4fb2504 DS |
537 | } else if ((attr->mp_nexthop_len) |
538 | && ((attr->mp_nexthop_len | |
539 | == BGP_ATTR_NHLEN_IPV4) | |
540 | || (attr->mp_nexthop_len | |
541 | == BGP_ATTR_NHLEN_VPNV4))) { | |
e26c3055 | 542 | tmp_addr.p.u.prefix4 = |
949b0f24 | 543 | attr->mp_nexthop_global_in; |
e26c3055 | 544 | tmp_addr.p.prefixlen = IPV4_MAX_BITLEN; |
949b0f24 | 545 | } else |
3dc339cd | 546 | return false; |
949b0f24 | 547 | } |
548 | break; | |
af34d2da | 549 | case AF_INET6: |
949b0f24 | 550 | if (is_bgp_static_route) { |
b54892e0 DS |
551 | tmp_addr.p.u.prefix6 = p->u.prefix6; |
552 | tmp_addr.p.prefixlen = p->prefixlen; | |
949b0f24 | 553 | } else { |
e26c3055 DS |
554 | tmp_addr.p.u.prefix6 = attr->mp_nexthop_global; |
555 | tmp_addr.p.prefixlen = IPV6_MAX_BITLEN; | |
949b0f24 | 556 | } |
557 | break; | |
558 | default: | |
559 | break; | |
560 | } | |
10f9bf3f | 561 | |
949b0f24 | 562 | addr = hash_lookup(bgp->address_hash, &tmp_addr); |
d62a17ae | 563 | if (addr) |
3dc339cd | 564 | return true; |
718e3744 | 565 | |
3584c85e | 566 | if (new_afi == AF_INET && hashcount(bgp->tip_hash)) { |
6006b807 | 567 | memset(&tmp_tip, 0, sizeof(tmp_tip)); |
949b0f24 | 568 | tmp_tip.addr = attr->nexthop; |
569 | ||
570 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) { | |
571 | tmp_tip.addr = attr->nexthop; | |
572 | } else if ((attr->mp_nexthop_len) && | |
2ec802d1 DS |
573 | ((attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV4) |
574 | || (attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV4))) { | |
949b0f24 | 575 | tmp_tip.addr = attr->mp_nexthop_global_in; |
576 | } | |
577 | ||
578 | tip = hash_lookup(bgp->tip_hash, &tmp_tip); | |
579 | if (tip) | |
3dc339cd | 580 | return true; |
949b0f24 | 581 | } |
db0e1937 | 582 | |
3dc339cd | 583 | return false; |
718e3744 | 584 | } |
6b0655a2 | 585 | |
3dc339cd | 586 | bool bgp_multiaccess_check_v4(struct in_addr nexthop, struct peer *peer) |
718e3744 | 587 | { |
9bcb3eef DS |
588 | struct bgp_dest *dest1; |
589 | struct bgp_dest *dest2; | |
d62a17ae | 590 | struct prefix p; |
591 | int ret; | |
592 | ||
593 | p.family = AF_INET; | |
594 | p.prefixlen = IPV4_MAX_BITLEN; | |
595 | p.u.prefix4 = nexthop; | |
596 | ||
9bcb3eef DS |
597 | dest1 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); |
598 | if (!dest1) | |
3dc339cd | 599 | return false; |
d62a17ae | 600 | |
601 | p.family = AF_INET; | |
602 | p.prefixlen = IPV4_MAX_BITLEN; | |
603 | p.u.prefix4 = peer->su.sin.sin_addr; | |
604 | ||
9bcb3eef DS |
605 | dest2 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); |
606 | if (!dest2) { | |
607 | bgp_dest_unlock_node(dest1); | |
3dc339cd | 608 | return false; |
d62a17ae | 609 | } |
718e3744 | 610 | |
9bcb3eef | 611 | ret = (dest1 == dest2); |
718e3744 | 612 | |
9bcb3eef DS |
613 | bgp_dest_unlock_node(dest1); |
614 | bgp_dest_unlock_node(dest2); | |
718e3744 | 615 | |
3dc339cd | 616 | return ret; |
718e3744 | 617 | } |
618 | ||
3dc339cd | 619 | bool bgp_multiaccess_check_v6(struct in6_addr nexthop, struct peer *peer) |
737af885 | 620 | { |
9bcb3eef DS |
621 | struct bgp_dest *dest1; |
622 | struct bgp_dest *dest2; | |
737af885 BS |
623 | struct prefix p; |
624 | int ret; | |
625 | ||
626 | p.family = AF_INET6; | |
627 | p.prefixlen = IPV6_MAX_BITLEN; | |
628 | p.u.prefix6 = nexthop; | |
629 | ||
9bcb3eef DS |
630 | dest1 = bgp_node_match(peer->bgp->connected_table[AFI_IP6], &p); |
631 | if (!dest1) | |
3dc339cd | 632 | return false; |
737af885 BS |
633 | |
634 | p.family = AF_INET6; | |
635 | p.prefixlen = IPV6_MAX_BITLEN; | |
636 | p.u.prefix6 = peer->su.sin6.sin6_addr; | |
637 | ||
9bcb3eef DS |
638 | dest2 = bgp_node_match(peer->bgp->connected_table[AFI_IP6], &p); |
639 | if (!dest2) { | |
640 | bgp_dest_unlock_node(dest1); | |
3dc339cd | 641 | return false; |
737af885 BS |
642 | } |
643 | ||
9bcb3eef | 644 | ret = (dest1 == dest2); |
737af885 | 645 | |
9bcb3eef DS |
646 | bgp_dest_unlock_node(dest1); |
647 | bgp_dest_unlock_node(dest2); | |
737af885 BS |
648 | |
649 | return ret; | |
650 | } | |
651 | ||
3dc339cd DA |
652 | bool bgp_subgrp_multiaccess_check_v6(struct in6_addr nexthop, |
653 | struct update_subgroup *subgrp, | |
654 | struct peer *exclude) | |
737af885 | 655 | { |
9bcb3eef | 656 | struct bgp_dest *dest1 = NULL, *dest2 = NULL; |
737af885 BS |
657 | struct peer_af *paf = NULL; |
658 | struct prefix p = {0}, np = {0}; | |
659 | struct bgp *bgp = NULL; | |
660 | ||
661 | np.family = AF_INET6; | |
662 | np.prefixlen = IPV6_MAX_BITLEN; | |
663 | np.u.prefix6 = nexthop; | |
664 | ||
665 | p.family = AF_INET; | |
666 | p.prefixlen = IPV6_MAX_BITLEN; | |
667 | ||
668 | bgp = SUBGRP_INST(subgrp); | |
9bcb3eef DS |
669 | dest1 = bgp_node_match(bgp->connected_table[AFI_IP6], &np); |
670 | if (!dest1) | |
3dc339cd | 671 | return false; |
737af885 BS |
672 | |
673 | SUBGRP_FOREACH_PEER (subgrp, paf) { | |
a3b72539 | 674 | /* Skip peer we're told to exclude - e.g., source of route. */ |
675 | if (paf->peer == exclude) | |
676 | continue; | |
737af885 BS |
677 | |
678 | p.u.prefix6 = paf->peer->su.sin6.sin6_addr; | |
9bcb3eef DS |
679 | dest2 = bgp_node_match(bgp->connected_table[AFI_IP6], &p); |
680 | if (dest1 == dest2) { | |
681 | bgp_dest_unlock_node(dest1); | |
682 | bgp_dest_unlock_node(dest2); | |
3dc339cd | 683 | return true; |
737af885 BS |
684 | } |
685 | ||
9bcb3eef DS |
686 | if (dest2) |
687 | bgp_dest_unlock_node(dest2); | |
737af885 BS |
688 | } |
689 | ||
9bcb3eef | 690 | bgp_dest_unlock_node(dest1); |
3dc339cd | 691 | return false; |
737af885 BS |
692 | } |
693 | ||
3dc339cd DA |
694 | bool bgp_subgrp_multiaccess_check_v4(struct in_addr nexthop, |
695 | struct update_subgroup *subgrp, | |
696 | struct peer *exclude) | |
65d4e0c6 | 697 | { |
9bcb3eef | 698 | struct bgp_dest *dest1, *dest2; |
65d4e0c6 DS |
699 | struct peer_af *paf; |
700 | struct prefix p, np; | |
a2b6e694 | 701 | struct bgp *bgp; |
65d4e0c6 DS |
702 | |
703 | np.family = AF_INET; | |
704 | np.prefixlen = IPV4_MAX_BITLEN; | |
705 | np.u.prefix4 = nexthop; | |
706 | ||
707 | p.family = AF_INET; | |
708 | p.prefixlen = IPV4_MAX_BITLEN; | |
709 | ||
65d4e0c6 | 710 | bgp = SUBGRP_INST(subgrp); |
9bcb3eef DS |
711 | dest1 = bgp_node_match(bgp->connected_table[AFI_IP], &np); |
712 | if (!dest1) | |
3dc339cd | 713 | return false; |
65d4e0c6 | 714 | |
996c9314 | 715 | SUBGRP_FOREACH_PEER (subgrp, paf) { |
a3b72539 | 716 | /* Skip peer we're told to exclude - e.g., source of route. */ |
717 | if (paf->peer == exclude) | |
718 | continue; | |
719 | ||
65d4e0c6 DS |
720 | p.u.prefix4 = paf->peer->su.sin.sin_addr; |
721 | ||
9bcb3eef DS |
722 | dest2 = bgp_node_match(bgp->connected_table[AFI_IP], &p); |
723 | if (dest1 == dest2) { | |
724 | bgp_dest_unlock_node(dest1); | |
725 | bgp_dest_unlock_node(dest2); | |
3dc339cd | 726 | return true; |
65d4e0c6 DS |
727 | } |
728 | ||
9bcb3eef DS |
729 | if (dest2) |
730 | bgp_dest_unlock_node(dest2); | |
65d4e0c6 DS |
731 | } |
732 | ||
9bcb3eef | 733 | bgp_dest_unlock_node(dest1); |
3dc339cd | 734 | return false; |
65d4e0c6 DS |
735 | } |
736 | ||
5d76a53d | 737 | static void bgp_show_nexthop_paths(struct vty *vty, struct bgp *bgp, |
738 | struct bgp_nexthop_cache *bnc) | |
739 | { | |
9bcb3eef | 740 | struct bgp_dest *dest; |
5d76a53d | 741 | struct bgp_path_info *path; |
742 | int afi; | |
743 | safi_t safi; | |
744 | struct bgp_table *table; | |
745 | struct bgp *bgp_path; | |
5d76a53d | 746 | |
747 | vty_out(vty, " Paths:\n"); | |
748 | LIST_FOREACH (path, &(bnc->paths), nh_thread) { | |
9bcb3eef DS |
749 | dest = path->net; |
750 | assert(dest && bgp_dest_table(dest)); | |
751 | afi = family2afi(bgp_dest_get_prefix(dest)->family); | |
752 | table = bgp_dest_table(dest); | |
5d76a53d | 753 | safi = table->safi; |
754 | bgp_path = table->bgp; | |
755 | ||
c4f64ea9 DA |
756 | if (dest->pdest) |
757 | vty_out(vty, " %d/%d %pBD RD %pRD %s flags 0x%x\n", | |
758 | afi, safi, dest, | |
759 | (struct prefix_rd *)bgp_dest_get_prefix( | |
760 | dest->pdest), | |
761 | bgp_path->name_pretty, path->flags); | |
762 | else | |
56ca3b5b | 763 | vty_out(vty, " %d/%d %pBD %s flags 0x%x\n", |
9bcb3eef | 764 | afi, safi, dest, bgp_path->name_pretty, path->flags); |
5d76a53d | 765 | } |
766 | } | |
767 | ||
996c9314 | 768 | static void bgp_show_nexthops_detail(struct vty *vty, struct bgp *bgp, |
e22ac3ee DS |
769 | struct bgp_nexthop_cache *bnc) |
770 | { | |
e22ac3ee DS |
771 | struct nexthop *nexthop; |
772 | ||
5d76a53d | 773 | for (nexthop = bnc->nexthop; nexthop; nexthop = nexthop->next) { |
e22ac3ee DS |
774 | switch (nexthop->type) { |
775 | case NEXTHOP_TYPE_IPV6: | |
07380148 | 776 | vty_out(vty, " gate %pI6\n", &nexthop->gate.ipv6); |
e22ac3ee DS |
777 | break; |
778 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
07380148 DA |
779 | vty_out(vty, " gate %pI6, if %s\n", |
780 | &nexthop->gate.ipv6, | |
8761cd6d DS |
781 | ifindex2ifname(bnc->ifindex ? bnc->ifindex |
782 | : nexthop->ifindex, | |
783 | bgp->vrf_id)); | |
e22ac3ee DS |
784 | break; |
785 | case NEXTHOP_TYPE_IPV4: | |
07380148 | 786 | vty_out(vty, " gate %pI4\n", &nexthop->gate.ipv4); |
e22ac3ee DS |
787 | break; |
788 | case NEXTHOP_TYPE_IFINDEX: | |
789 | vty_out(vty, " if %s\n", | |
8761cd6d DS |
790 | ifindex2ifname(bnc->ifindex ? bnc->ifindex |
791 | : nexthop->ifindex, | |
792 | bgp->vrf_id)); | |
e22ac3ee DS |
793 | break; |
794 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
07380148 DA |
795 | vty_out(vty, " gate %pI4, if %s\n", |
796 | &nexthop->gate.ipv4, | |
8761cd6d DS |
797 | ifindex2ifname(bnc->ifindex ? bnc->ifindex |
798 | : nexthop->ifindex, | |
799 | bgp->vrf_id)); | |
e22ac3ee DS |
800 | break; |
801 | case NEXTHOP_TYPE_BLACKHOLE: | |
802 | vty_out(vty, " blackhole\n"); | |
803 | break; | |
804 | default: | |
996c9314 | 805 | vty_out(vty, " invalid nexthop type %u\n", |
e22ac3ee DS |
806 | nexthop->type); |
807 | } | |
5d76a53d | 808 | } |
e22ac3ee DS |
809 | } |
810 | ||
5d76a53d | 811 | static void bgp_show_nexthop(struct vty *vty, struct bgp *bgp, |
5d76a53d | 812 | struct bgp_nexthop_cache *bnc, |
813 | bool specific) | |
fb018d25 | 814 | { |
d62a17ae | 815 | char buf[PREFIX2STR_BUFFER]; |
d62a17ae | 816 | time_t tbuf; |
5d76a53d | 817 | struct peer *peer; |
5d76a53d | 818 | |
819 | peer = (struct peer *)bnc->nht_info; | |
820 | ||
545aeef1 RW |
821 | if (bnc->srte_color) |
822 | vty_out(vty, " SR-TE color %u -", bnc->srte_color); | |
5d76a53d | 823 | if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_VALID)) { |
824 | vty_out(vty, " %s valid [IGP metric %d], #paths %d", | |
f663c581 RW |
825 | inet_ntop(bnc->prefix.family, &bnc->prefix.u.prefix, |
826 | buf, sizeof(buf)), | |
5d76a53d | 827 | bnc->metric, bnc->path_count); |
828 | if (peer) | |
829 | vty_out(vty, ", peer %s", peer->host); | |
021b6596 AD |
830 | if (bnc->is_evpn_gwip_nexthop) |
831 | vty_out(vty, " EVPN Gateway IP"); | |
832 | vty_out(vty, "\n"); | |
833 | bgp_show_nexthops_detail(vty, bgp, bnc); | |
834 | } else if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_EVPN_INCOMPLETE)) { | |
835 | vty_out(vty, | |
836 | " %s overlay index unresolved [IGP metric %d], #paths %d", | |
837 | inet_ntop(bnc->prefix.family, &bnc->prefix.u.prefix, | |
838 | buf, sizeof(buf)), | |
839 | bnc->metric, bnc->path_count); | |
840 | if (bnc->is_evpn_gwip_nexthop) | |
841 | vty_out(vty, " EVPN Gateway IP"); | |
5d76a53d | 842 | vty_out(vty, "\n"); |
843 | bgp_show_nexthops_detail(vty, bgp, bnc); | |
844 | } else { | |
845 | vty_out(vty, " %s invalid, #paths %d", | |
f663c581 RW |
846 | inet_ntop(bnc->prefix.family, &bnc->prefix.u.prefix, |
847 | buf, sizeof(buf)), | |
5d76a53d | 848 | bnc->path_count); |
849 | if (peer) | |
850 | vty_out(vty, ", peer %s", peer->host); | |
021b6596 AD |
851 | if (bnc->is_evpn_gwip_nexthop) |
852 | vty_out(vty, " EVPN Gateway IP"); | |
5d76a53d | 853 | vty_out(vty, "\n"); |
854 | if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_CONNECTED)) | |
855 | vty_out(vty, " Must be Connected\n"); | |
856 | if (!CHECK_FLAG(bnc->flags, BGP_NEXTHOP_REGISTERED)) | |
857 | vty_out(vty, " Is not Registered\n"); | |
858 | } | |
083ec940 | 859 | tbuf = time(NULL) - (monotime(NULL) - bnc->last_update); |
5d76a53d | 860 | vty_out(vty, " Last update: %s", ctime(&tbuf)); |
5d76a53d | 861 | |
862 | /* show paths dependent on nexthop, if needed. */ | |
863 | if (specific) | |
864 | bgp_show_nexthop_paths(vty, bgp, bnc); | |
865 | } | |
866 | ||
867 | static void bgp_show_nexthops(struct vty *vty, struct bgp *bgp, | |
868 | bool import_table) | |
869 | { | |
5d76a53d | 870 | struct bgp_nexthop_cache *bnc; |
d62a17ae | 871 | afi_t afi; |
f663c581 | 872 | struct bgp_nexthop_cache_head(*tree)[AFI_MAX]; |
d62a17ae | 873 | |
05e47722 PG |
874 | if (import_table) |
875 | vty_out(vty, "Current BGP import check cache:\n"); | |
876 | else | |
877 | vty_out(vty, "Current BGP nexthop cache:\n"); | |
878 | if (import_table) | |
f663c581 | 879 | tree = &bgp->import_check_table; |
05e47722 | 880 | else |
f663c581 | 881 | tree = &bgp->nexthop_cache_table; |
d62a17ae | 882 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
f663c581 RW |
883 | frr_each (bgp_nexthop_cache, &(*tree)[afi], bnc) |
884 | bgp_show_nexthop(vty, bgp, bnc, false); | |
fb018d25 | 885 | } |
f186de26 | 886 | } |
887 | ||
d62a17ae | 888 | static int show_ip_bgp_nexthop_table(struct vty *vty, const char *name, |
5d76a53d | 889 | const char *nhopip_str, |
890 | bool import_table) | |
f186de26 | 891 | { |
d62a17ae | 892 | struct bgp *bgp; |
893 | ||
894 | if (name) | |
895 | bgp = bgp_lookup_by_name(name); | |
896 | else | |
897 | bgp = bgp_get_default(); | |
898 | if (!bgp) { | |
899 | vty_out(vty, "%% No such BGP instance exist\n"); | |
900 | return CMD_WARNING; | |
901 | } | |
f186de26 | 902 | |
5d76a53d | 903 | if (nhopip_str) { |
904 | struct prefix nhop; | |
f663c581 | 905 | struct bgp_nexthop_cache_head (*tree)[AFI_MAX]; |
5d76a53d | 906 | struct bgp_nexthop_cache *bnc; |
8c6a164f | 907 | bool found = false; |
5d76a53d | 908 | |
909 | if (!str2prefix(nhopip_str, &nhop)) { | |
910 | vty_out(vty, "nexthop address is malformed\n"); | |
911 | return CMD_WARNING; | |
912 | } | |
f663c581 RW |
913 | tree = import_table ? &bgp->import_check_table |
914 | : &bgp->nexthop_cache_table; | |
8c6a164f PG |
915 | frr_each (bgp_nexthop_cache, &(*tree)[family2afi(nhop.family)], |
916 | bnc) { | |
917 | if (prefix_cmp(&bnc->prefix, &nhop)) | |
918 | continue; | |
919 | bgp_show_nexthop(vty, bgp, bnc, true); | |
920 | found = true; | |
5d76a53d | 921 | } |
8c6a164f PG |
922 | if (!found) |
923 | vty_out(vty, "nexthop %s does not have entry\n", | |
924 | nhopip_str); | |
5d76a53d | 925 | } else |
926 | bgp_show_nexthops(vty, bgp, import_table); | |
f186de26 | 927 | |
d62a17ae | 928 | return CMD_SUCCESS; |
fb018d25 DS |
929 | } |
930 | ||
d62a17ae | 931 | static void bgp_show_all_instances_nexthops_vty(struct vty *vty) |
f186de26 | 932 | { |
d62a17ae | 933 | struct listnode *node, *nnode; |
934 | struct bgp *bgp; | |
935 | ||
936 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
937 | vty_out(vty, "\nInstance %s:\n", | |
938 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
5742e42b | 939 | ? VRF_DEFAULT_NAME |
d62a17ae | 940 | : bgp->name); |
5d76a53d | 941 | bgp_show_nexthops(vty, bgp, false); |
d62a17ae | 942 | } |
f186de26 | 943 | } |
944 | ||
fb018d25 DS |
945 | DEFUN (show_ip_bgp_nexthop, |
946 | show_ip_bgp_nexthop_cmd, | |
5d76a53d | 947 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] nexthop [<A.B.C.D|X:X::X:X>] [detail]", |
50ef26d4 | 948 | SHOW_STR |
949 | IP_STR | |
950 | BGP_STR | |
8386ac43 | 951 | BGP_INSTANCE_HELP_STR |
3a2d747c | 952 | "BGP nexthop table\n" |
5d76a53d | 953 | "IPv4 nexthop address\n" |
954 | "IPv6 nexthop address\n" | |
3a2d747c | 955 | "Show detailed information\n") |
50ef26d4 | 956 | { |
d62a17ae | 957 | int idx = 0; |
5d76a53d | 958 | int nh_idx = 0; |
b7ada628 | 959 | char *vrf = NULL; |
5d76a53d | 960 | char *nhop_ip = NULL; |
b7ada628 DS |
961 | |
962 | if (argv_find(argv, argc, "view", &idx) | |
963 | || argv_find(argv, argc, "vrf", &idx)) | |
964 | vrf = argv[++idx]->arg; | |
05e47722 | 965 | |
5d76a53d | 966 | if (argv_find(argv, argc, "A.B.C.D", &nh_idx) |
967 | || argv_find(argv, argc, "X:X::X:X", &nh_idx)) | |
968 | nhop_ip = argv[nh_idx]->arg; | |
969 | ||
970 | return show_ip_bgp_nexthop_table(vty, vrf, nhop_ip, false); | |
05e47722 PG |
971 | } |
972 | ||
973 | DEFUN (show_ip_bgp_import_check, | |
974 | show_ip_bgp_import_check_cmd, | |
975 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] import-check-table [detail]", | |
976 | SHOW_STR | |
977 | IP_STR | |
978 | BGP_STR | |
979 | BGP_INSTANCE_HELP_STR | |
980 | "BGP import check table\n" | |
981 | "Show detailed information\n") | |
982 | { | |
983 | int idx = 0; | |
984 | char *vrf = NULL; | |
985 | ||
986 | if (argv_find(argv, argc, "view", &idx) | |
987 | || argv_find(argv, argc, "vrf", &idx)) | |
988 | vrf = argv[++idx]->arg; | |
5d76a53d | 989 | |
990 | return show_ip_bgp_nexthop_table(vty, vrf, NULL, true); | |
50ef26d4 | 991 | } |
992 | ||
f186de26 | 993 | DEFUN (show_ip_bgp_instance_all_nexthop, |
994 | show_ip_bgp_instance_all_nexthop_cmd, | |
bec37ba5 | 995 | "show [ip] bgp <view|vrf> all nexthop", |
f186de26 | 996 | SHOW_STR |
997 | IP_STR | |
998 | BGP_STR | |
999 | BGP_INSTANCE_ALL_HELP_STR | |
1000 | "BGP nexthop table\n") | |
1001 | { | |
d62a17ae | 1002 | bgp_show_all_instances_nexthops_vty(vty); |
1003 | return CMD_SUCCESS; | |
f186de26 | 1004 | } |
1005 | ||
d62a17ae | 1006 | void bgp_scan_init(struct bgp *bgp) |
718e3744 | 1007 | { |
d62a17ae | 1008 | afi_t afi; |
1009 | ||
1010 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
f663c581 RW |
1011 | bgp_nexthop_cache_init(&bgp->nexthop_cache_table[afi]); |
1012 | bgp_nexthop_cache_init(&bgp->import_check_table[afi]); | |
960035b2 PZ |
1013 | bgp->connected_table[afi] = bgp_table_init(bgp, afi, |
1014 | SAFI_UNICAST); | |
d62a17ae | 1015 | } |
fc9a856f DS |
1016 | } |
1017 | ||
d62a17ae | 1018 | void bgp_scan_vty_init(void) |
fc9a856f | 1019 | { |
d62a17ae | 1020 | install_element(VIEW_NODE, &show_ip_bgp_nexthop_cmd); |
05e47722 | 1021 | install_element(VIEW_NODE, &show_ip_bgp_import_check_cmd); |
d62a17ae | 1022 | install_element(VIEW_NODE, &show_ip_bgp_instance_all_nexthop_cmd); |
718e3744 | 1023 | } |
228da428 | 1024 | |
d62a17ae | 1025 | void bgp_scan_finish(struct bgp *bgp) |
228da428 | 1026 | { |
d62a17ae | 1027 | afi_t afi; |
6c88b44d | 1028 | |
d62a17ae | 1029 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
1030 | /* Only the current one needs to be reset. */ | |
f663c581 RW |
1031 | bgp_nexthop_cache_reset(&bgp->nexthop_cache_table[afi]); |
1032 | bgp_nexthop_cache_reset(&bgp->import_check_table[afi]); | |
228da428 | 1033 | |
3292693b DS |
1034 | bgp->connected_table[afi]->route_table->cleanup = |
1035 | bgp_connected_cleanup; | |
d62a17ae | 1036 | bgp_table_unlock(bgp->connected_table[afi]); |
1037 | bgp->connected_table[afi] = NULL; | |
d62a17ae | 1038 | } |
228da428 | 1039 | } |
987a720a DS |
1040 | |
1041 | char *bgp_nexthop_dump_bnc_flags(struct bgp_nexthop_cache *bnc, char *buf, | |
1042 | size_t len) | |
1043 | { | |
1044 | if (bnc->flags == 0) { | |
1045 | snprintfrr(buf, len, "None "); | |
1046 | return buf; | |
1047 | } | |
1048 | ||
1049 | snprintfrr(buf, len, "%s%s%s%s%s%s%s", | |
1050 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_VALID) ? "Valid " : "", | |
1051 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_REGISTERED) ? "Reg " : "", | |
1052 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_CONNECTED) ? "Conn " : "", | |
1053 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_PEER_NOTIFIED) ? "Notify " | |
1054 | : "", | |
1055 | CHECK_FLAG(bnc->flags, BGP_STATIC_ROUTE) ? "Static " : "", | |
1056 | CHECK_FLAG(bnc->flags, BGP_STATIC_ROUTE_EXACT_MATCH) | |
1057 | ? "Static Exact " | |
1058 | : "", | |
1059 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_LABELED_VALID) | |
1060 | ? "Label Valid " | |
1061 | : ""); | |
1062 | ||
1063 | return buf; | |
1064 | } | |
df2a41a9 DS |
1065 | |
1066 | char *bgp_nexthop_dump_bnc_change_flags(struct bgp_nexthop_cache *bnc, | |
1067 | char *buf, size_t len) | |
1068 | { | |
1069 | if (bnc->flags == 0) { | |
1070 | snprintfrr(buf, len, "None "); | |
1071 | return buf; | |
1072 | } | |
1073 | ||
1074 | snprintfrr(buf, len, "%s%s%s", | |
1075 | CHECK_FLAG(bnc->change_flags, BGP_NEXTHOP_CHANGED) | |
1076 | ? "Changed " | |
1077 | : "", | |
1078 | CHECK_FLAG(bnc->change_flags, BGP_NEXTHOP_METRIC_CHANGED) | |
1079 | ? "Metric " | |
1080 | : "", | |
1081 | CHECK_FLAG(bnc->change_flags, BGP_NEXTHOP_CONNECTED_CHANGED) | |
1082 | ? "Connected " | |
1083 | : ""); | |
1084 | ||
1085 | return buf; | |
1086 | } |